Looks like John Lewis is following suit, but web apps before native apps seems to be the consensus

"John Lewis has announced it will launch a fully transactional mobile-optimised version of its web site next week. The department store retailer also plans to launch a mobile app early next year with the aim of integrating mobile into its online operations. The new mobile site will feature a store-locator and allow shoppers to buy from the full range of products on johnlewis.com from any internet-enabled mobile device.

Jonathon Brown, head of online selling at John Lewis said: “Our customers’ appetite for mobile commerce has grown enormously and our focus has been on developing a site with a seamless experience. Mobile is a vital part of our vision to become the leading multi-channel retailer in the UK, so watch this space for future developments.”

The mobile site was developed in house and in partnership with third party Usablenet. "

IMRG (2010) John Lewis moves into mobile commerce, 5 October 2010, Interactive Media In Retail Group (IMRG) London, available at https://www.imrg.org/8025741F0065E9B8/(httpNews)/F1DE670A3DD85B11802577B3003AE382?OpenDocument, accessed 04/11/2010


Check this out for more info :

http://econsultancy.com/uk/blog/6705-john-lewis-launches-mobile-commerce-site